<title>HZOI 帝国布线</title><link href="http://hzoi.com/tomorrow.css" rel="stylesheet"><div class="ui existing segment"><pre><code><span class="pl-cp">#include</span><span class="pl-cpf">&lt;cstdio&gt;</span><span class="pl-cp"></span>
<span class="pl-cp">#include</span><span class="pl-cpf">&lt;cmath&gt;</span><span class="pl-cp"></span>
<span class="pl-cp">#include</span><span class="pl-cpf">&lt;cstring&gt;</span><span class="pl-cp"></span>
<span class="pl-cp">#define maxn 200002</span>
<span class="pl-cp">#define I return</span>
<span class="pl-cp">#define LIKE 0</span>
<span class="pl-cp">#define luogu ;</span>
<span class="pl-k">using</span> <span class="pl-k">namespace</span> <span class="pl-n">std</span><span class="pl-p">;</span>
<span class="pl-k">struct</span> <span class="pl-n">tnode</span><span class="pl-p">{</span>
    <span class="pl-kt">int</span> <span class="pl-n">x</span><span class="pl-p">,</span><span class="pl-n">y</span><span class="pl-p">;</span>
    <span class="pl-kt">int</span> <span class="pl-n">city</span><span class="pl-p">;</span>
<span class="pl-p">}</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">maxn</span><span class="pl-p">];</span>
<span class="pl-kt">int</span> <span class="pl-n">s</span><span class="pl-p">,</span><span class="pl-n">t</span><span class="pl-p">,</span><span class="pl-n">A</span><span class="pl-p">,</span><span class="pl-n">B</span><span class="pl-p">;</span>
<span class="pl-kt">double</span> <span class="pl-n">f</span><span class="pl-p">[</span><span class="pl-mi">20002</span><span class="pl-p">];</span>
<span class="pl-kt">double</span> <span class="pl-n">fll</span><span class="pl-p">[</span><span class="pl-mi">1001</span><span class="pl-p">][</span><span class="pl-mi">1001</span><span class="pl-p">];</span>
<span class="pl-kt">double</span> <span class="pl-nf">fac</span><span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">x</span><span class="pl-p">)</span> <span class="pl-p">{</span> 
    <span class="pl-k">return</span> <span class="pl-n">x</span><span class="pl-o">*</span><span class="pl-n">x</span><span class="pl-p">;</span> 
<span class="pl-p">}</span>
<span class="pl-kt">double</span> <span class="pl-nf">distan</span><span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">x1</span><span class="pl-p">,</span> <span class="pl-kt">int</span> <span class="pl-n">y1</span><span class="pl-p">,</span> <span class="pl-kt">int</span> <span class="pl-n">x2</span><span class="pl-p">,</span> <span class="pl-kt">int</span> <span class="pl-n">y2</span><span class="pl-p">)</span> <span class="pl-p">{</span> 
       <span class="pl-k">return</span> <span class="pl-mf">1.0</span><span class="pl-o">*</span><span class="pl-n">sqrt</span><span class="pl-p">(</span><span class="pl-mf">1.0</span><span class="pl-o">*</span><span class="pl-n">fac</span><span class="pl-p">(</span><span class="pl-n">x1</span><span class="pl-o">-</span><span class="pl-n">x2</span><span class="pl-p">)</span><span class="pl-o">+</span><span class="pl-mf">1.0</span><span class="pl-o">*</span><span class="pl-n">fac</span><span class="pl-p">(</span><span class="pl-n">y1</span><span class="pl-o">-</span><span class="pl-n">y2</span><span class="pl-p">));</span> 
<span class="pl-p">}</span>
<span class="pl-kt">void</span> <span class="pl-nf">universe</span><span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">x1</span><span class="pl-p">,</span><span class="pl-kt">int</span> <span class="pl-n">y1</span><span class="pl-p">,</span><span class="pl-kt">int</span> <span class="pl-n">x2</span><span class="pl-p">,</span><span class="pl-kt">int</span> <span class="pl-n">y2</span><span class="pl-p">,</span><span class="pl-kt">int</span> <span class="pl-n">x3</span><span class="pl-p">,</span><span class="pl-kt">int</span> <span class="pl-n">y3</span><span class="pl-p">,</span><span class="pl-kt">int</span> <span class="pl-n">i</span><span class="pl-p">)</span> <span class="pl-p">{</span>
    <span class="pl-kt">int</span> <span class="pl-n">ab</span><span class="pl-o">=</span><span class="pl-n">fac</span><span class="pl-p">(</span><span class="pl-n">x1</span><span class="pl-o">-</span><span class="pl-n">x2</span><span class="pl-p">)</span><span class="pl-o">+</span><span class="pl-n">fac</span><span class="pl-p">(</span><span class="pl-n">y1</span><span class="pl-o">-</span><span class="pl-n">y2</span><span class="pl-p">);</span>
    <span class="pl-kt">int</span> <span class="pl-n">bc</span><span class="pl-o">=</span><span class="pl-n">fac</span><span class="pl-p">(</span><span class="pl-n">x2</span><span class="pl-o">-</span><span class="pl-n">x3</span><span class="pl-p">)</span><span class="pl-o">+</span><span class="pl-n">fac</span><span class="pl-p">(</span><span class="pl-n">y2</span><span class="pl-o">-</span><span class="pl-n">y3</span><span class="pl-p">);</span>
    <span class="pl-kt">int</span> <span class="pl-n">ac</span><span class="pl-o">=</span><span class="pl-n">fac</span><span class="pl-p">(</span><span class="pl-n">x1</span><span class="pl-o">-</span><span class="pl-n">x3</span><span class="pl-p">)</span><span class="pl-o">+</span><span class="pl-n">fac</span><span class="pl-p">(</span><span class="pl-n">y1</span><span class="pl-o">-</span><span class="pl-n">y3</span><span class="pl-p">);</span>
    <span class="pl-kt">int</span> <span class="pl-n">x4</span><span class="pl-p">,</span><span class="pl-n">y4</span><span class="pl-p">;</span> 
    <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-n">ab</span><span class="pl-o">+</span><span class="pl-n">ac</span><span class="pl-o">==</span><span class="pl-n">bc</span><span class="pl-p">)</span> <span class="pl-n">x4</span><span class="pl-o">=</span><span class="pl-n">x2</span><span class="pl-o">+</span><span class="pl-n">x3</span><span class="pl-o">-</span><span class="pl-n">x1</span><span class="pl-p">,</span> <span class="pl-n">y4</span><span class="pl-o">=</span><span class="pl-n">y2</span><span class="pl-o">+</span><span class="pl-n">y3</span><span class="pl-o">-</span><span class="pl-n">y1</span><span class="pl-p">;</span>
    <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-n">ab</span><span class="pl-o">+</span><span class="pl-n">bc</span><span class="pl-o">==</span><span class="pl-n">ac</span><span class="pl-p">)</span> <span class="pl-n">x4</span><span class="pl-o">=</span><span class="pl-n">x1</span><span class="pl-o">+</span><span class="pl-n">x3</span><span class="pl-o">-</span><span class="pl-n">x2</span><span class="pl-p">,</span> <span class="pl-n">y4</span><span class="pl-o">=</span><span class="pl-n">y1</span><span class="pl-o">+</span><span class="pl-n">y3</span><span class="pl-o">-</span><span class="pl-n">y2</span><span class="pl-p">;</span>
    <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-n">bc</span><span class="pl-o">+</span><span class="pl-n">ac</span><span class="pl-o">==</span><span class="pl-n">ab</span><span class="pl-p">)</span> <span class="pl-n">x4</span><span class="pl-o">=</span><span class="pl-n">x1</span><span class="pl-o">+</span><span class="pl-n">x2</span><span class="pl-o">-</span><span class="pl-n">x3</span><span class="pl-p">,</span> <span class="pl-n">y4</span><span class="pl-o">=</span><span class="pl-n">y1</span><span class="pl-o">+</span><span class="pl-n">y2</span><span class="pl-o">-</span><span class="pl-n">y3</span><span class="pl-p">;</span>
    <span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-o">+</span><span class="pl-mi">3</span><span class="pl-p">].</span><span class="pl-n">x</span><span class="pl-o">=</span><span class="pl-n">x4</span><span class="pl-p">;</span>
    <span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-o">+</span><span class="pl-mi">3</span><span class="pl-p">].</span><span class="pl-n">y</span><span class="pl-o">=</span><span class="pl-n">y4</span><span class="pl-p">;</span>
<span class="pl-p">}</span>
<span class="pl-kt">double</span> <span class="pl-nf">mon</span><span class="pl-p">(</span><span class="pl-n">tnode</span> <span class="pl-n">x1</span><span class="pl-p">,</span><span class="pl-n">tnode</span> <span class="pl-n">x2</span><span class="pl-p">){</span>
    <span class="pl-kt">double</span> <span class="pl-n">juli</span><span class="pl-o">=</span><span class="pl-n">distan</span><span class="pl-p">(</span><span class="pl-n">x1</span><span class="pl-p">.</span><span class="pl-n">x</span><span class="pl-p">,</span><span class="pl-n">x1</span><span class="pl-p">.</span><span class="pl-n">y</span><span class="pl-p">,</span><span class="pl-n">x2</span><span class="pl-p">.</span><span class="pl-n">x</span><span class="pl-p">,</span><span class="pl-n">x2</span><span class="pl-p">.</span><span class="pl-n">y</span><span class="pl-p">);</span>
    <span class="pl-k">if</span><span class="pl-p">(</span><span class="pl-n">x1</span><span class="pl-p">.</span><span class="pl-n">city</span><span class="pl-o">==</span><span class="pl-n">x2</span><span class="pl-p">.</span><span class="pl-n">city</span><span class="pl-p">)</span> <span class="pl-k">return</span> <span class="pl-mf">1.0</span><span class="pl-o">*</span><span class="pl-n">juli</span><span class="pl-o">*</span><span class="pl-n">f</span><span class="pl-p">[</span><span class="pl-n">x1</span><span class="pl-p">.</span><span class="pl-n">city</span><span class="pl-p">];</span>
    <span class="pl-k">return</span> <span class="pl-mf">1.0</span><span class="pl-o">*</span><span class="pl-n">juli</span><span class="pl-o">*</span><span class="pl-n">t</span><span class="pl-p">;</span>
<span class="pl-p">}</span>
<span class="pl-kt">int</span> <span class="pl-nf">main</span><span class="pl-p">()</span> <span class="pl-p">{</span>
    <span class="pl-n">freopen</span><span class="pl-p">(</span><span class="pl-s">&quot;car.in&quot;</span><span class="pl-p">,</span><span class="pl-s">&quot;r&quot;</span><span class="pl-p">,</span><span class="pl-n">stdin</span><span class="pl-p">);</span>
    <span class="pl-n">freopen</span><span class="pl-p">(</span><span class="pl-s">&quot;car.out&quot;</span><span class="pl-p">,</span><span class="pl-s">&quot;w&quot;</span><span class="pl-p">,</span><span class="pl-n">stdout</span><span class="pl-p">);</span>
    <span class="pl-kt">int</span> <span class="pl-n">n</span><span class="pl-p">;</span>
    <span class="pl-kt">double</span> <span class="pl-n">ans</span><span class="pl-o">=</span><span class="pl-mf">29292992.0</span><span class="pl-p">;</span>
    <span class="pl-n">scanf</span><span class="pl-p">(</span><span class="pl-s">&quot;%d&quot;</span><span class="pl-p">,</span><span class="pl-o">&amp;</span><span class="pl-n">n</span><span class="pl-p">);</span>
    <span class="pl-k">while</span><span class="pl-p">(</span><span class="pl-n">n</span><span class="pl-o">--</span><span class="pl-p">){</span>
        <span class="pl-n">memset</span><span class="pl-p">(</span><span class="pl-n">fll</span><span class="pl-p">,</span><span class="pl-mi">98</span><span class="pl-p">,</span><span class="pl-k">sizeof</span><span class="pl-p">(</span><span class="pl-n">fll</span><span class="pl-p">));</span>
        <span class="pl-n">memset</span><span class="pl-p">(</span><span class="pl-n">edge</span><span class="pl-p">,</span><span class="pl-mi">0</span><span class="pl-p">,</span><span class="pl-k">sizeof</span><span class="pl-p">(</span><span class="pl-n">edge</span><span class="pl-p">));</span>
        <span class="pl-n">scanf</span><span class="pl-p">(</span><span class="pl-s">&quot;%d%d%d%d&quot;</span><span class="pl-p">,</span><span class="pl-o">&amp;</span><span class="pl-n">s</span><span class="pl-p">,</span><span class="pl-o">&amp;</span><span class="pl-n">t</span><span class="pl-p">,</span><span class="pl-o">&amp;</span><span class="pl-n">A</span><span class="pl-p">,</span><span class="pl-o">&amp;</span><span class="pl-n">B</span><span class="pl-p">);</span>
        <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span><span class="pl-o">=</span><span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span><span class="pl-o">&lt;=</span><span class="pl-mi">4</span><span class="pl-o">*</span><span class="pl-n">s</span><span class="pl-p">;</span> <span class="pl-n">i</span><span class="pl-o">=</span><span class="pl-n">i</span><span class="pl-o">+</span><span class="pl-mi">4</span><span class="pl-p">)</span> <span class="pl-p">{</span>
            <span class="pl-n">scanf</span><span class="pl-p">(</span><span class="pl-s">&quot;%d%d%d%d%d%d%lf&quot;</span><span class="pl-p">,</span><span class="pl-o">&amp;</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">].</span><span class="pl-n">x</span><span class="pl-p">,</span><span class="pl-o">&amp;</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">].</span><span class="pl-n">y</span><span class="pl-p">,</span><span class="pl-o">&amp;</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-o">+</span><span class="pl-mi">1</span><span class="pl-p">].</span><span class="pl-n">x</span><span class="pl-p">,</span><span class="pl-o">&amp;</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-o">+</span><span class="pl-mi">1</span><span class="pl-p">].</span><span class="pl-n">y</span><span class="pl-p">,</span><span class="pl-o">&amp;</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-o">+</span><span class="pl-mi">2</span><span class="pl-p">].</span><span class="pl-n">x</span><span class="pl-p">,</span><span class="pl-o">&amp;</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-o">+</span><span class="pl-mi">2</span><span class="pl-p">].</span><span class="pl-n">y</span><span class="pl-p">,</span><span class="pl-o">&amp;</span><span class="pl-n">f</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-o">/</span><span class="pl-mi">4</span><span class="pl-o">+</span><span class="pl-mi">1</span><span class="pl-p">]);</span>
            <span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">].</span><span class="pl-n">city</span><span class="pl-o">=</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-o">+</span><span class="pl-mi">1</span><span class="pl-p">].</span><span class="pl-n">city</span><span class="pl-o">=</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-o">+</span><span class="pl-mi">2</span><span class="pl-p">].</span><span class="pl-n">city</span><span class="pl-o">=</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-o">+</span><span class="pl-mi">3</span><span class="pl-p">].</span><span class="pl-n">city</span><span class="pl-o">=</span><span class="pl-n">i</span><span class="pl-o">/</span><span class="pl-mi">4</span><span class="pl-o">+</span><span class="pl-mi">1</span><span class="pl-p">;</span>
            <span class="pl-n">universe</span><span class="pl-p">(</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">].</span><span class="pl-n">x</span><span class="pl-p">,</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">].</span><span class="pl-n">y</span><span class="pl-p">,</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-o">+</span><span class="pl-mi">1</span><span class="pl-p">].</span><span class="pl-n">x</span><span class="pl-p">,</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-o">+</span><span class="pl-mi">1</span><span class="pl-p">].</span><span class="pl-n">y</span><span class="pl-p">,</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-o">+</span><span class="pl-mi">2</span><span class="pl-p">].</span><span class="pl-n">x</span><span class="pl-p">,</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-o">+</span><span class="pl-mi">2</span><span class="pl-p">].</span><span class="pl-n">y</span><span class="pl-p">,</span><span class="pl-n">i</span><span class="pl-p">);</span>
        <span class="pl-p">}</span>
        <span class="pl-k">for</span><span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span><span class="pl-o">=</span><span class="pl-mi">1</span><span class="pl-p">;</span><span class="pl-n">i</span><span class="pl-o">&lt;=</span><span class="pl-n">s</span><span class="pl-o">*</span><span class="pl-mi">4</span><span class="pl-p">;</span><span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span>
           <span class="pl-k">for</span><span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">j</span><span class="pl-o">=</span><span class="pl-mi">1</span><span class="pl-p">;</span><span class="pl-n">j</span><span class="pl-o">&lt;=</span><span class="pl-n">s</span><span class="pl-o">*</span><span class="pl-mi">4</span><span class="pl-p">;</span><span class="pl-n">j</span><span class="pl-o">++</span><span class="pl-p">)</span>
                <span class="pl-n">fll</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">][</span><span class="pl-n">j</span><span class="pl-p">]</span><span class="pl-o">=</span><span class="pl-mf">1.0</span><span class="pl-o">*</span><span class="pl-n">mon</span><span class="pl-p">(</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">],</span><span class="pl-n">edge</span><span class="pl-p">[</span><span class="pl-n">j</span><span class="pl-p">]);</span>
        <span class="pl-k">for</span><span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">k</span><span class="pl-o">=</span><span class="pl-mi">1</span><span class="pl-p">;</span><span class="pl-n">k</span><span class="pl-o">&lt;=</span><span class="pl-n">s</span><span class="pl-o">*</span><span class="pl-mi">4</span><span class="pl-p">;</span><span class="pl-n">k</span><span class="pl-o">++</span><span class="pl-p">)</span>
           <span class="pl-k">for</span><span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span><span class="pl-o">=</span><span class="pl-mi">1</span><span class="pl-p">;</span><span class="pl-n">i</span><span class="pl-o">&lt;=</span><span class="pl-n">s</span><span class="pl-o">*</span><span class="pl-mi">4</span><span class="pl-p">;</span><span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span>
              <span class="pl-k">if</span><span class="pl-p">(</span><span class="pl-n">i</span><span class="pl-o">!=</span><span class="pl-n">k</span><span class="pl-p">)</span>
              <span class="pl-k">for</span><span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">j</span><span class="pl-o">=</span><span class="pl-mi">1</span><span class="pl-p">;</span><span class="pl-n">j</span><span class="pl-o">&lt;=</span><span class="pl-n">s</span><span class="pl-o">*</span><span class="pl-mi">4</span><span class="pl-p">;</span><span class="pl-n">j</span><span class="pl-o">++</span><span class="pl-p">)</span>
                 <span class="pl-k">if</span><span class="pl-p">(</span><span class="pl-n">i</span><span class="pl-o">!=</span><span class="pl-n">j</span><span class="pl-o">&amp;&amp;</span><span class="pl-n">j</span><span class="pl-o">!=</span><span class="pl-n">k</span><span class="pl-p">){</span>
                    <span class="pl-k">if</span><span class="pl-p">(</span><span class="pl-n">fll</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">][</span><span class="pl-n">j</span><span class="pl-p">]</span><span class="pl-o">&gt;</span><span class="pl-n">fll</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">][</span><span class="pl-n">k</span><span class="pl-p">]</span><span class="pl-o">+</span><span class="pl-n">fll</span><span class="pl-p">[</span><span class="pl-n">k</span><span class="pl-p">][</span><span class="pl-n">j</span><span class="pl-p">])</span>
                       <span class="pl-n">fll</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">][</span><span class="pl-n">j</span><span class="pl-p">]</span><span class="pl-o">=</span><span class="pl-n">fll</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">][</span><span class="pl-n">k</span><span class="pl-p">]</span><span class="pl-o">+</span><span class="pl-n">fll</span><span class="pl-p">[</span><span class="pl-n">k</span><span class="pl-p">][</span><span class="pl-n">j</span><span class="pl-p">];</span>
                <span class="pl-p">}</span>
                
        <span class="pl-k">for</span><span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span><span class="pl-o">=</span><span class="pl-n">A</span><span class="pl-o">*</span><span class="pl-mi">4</span><span class="pl-o">-</span><span class="pl-mi">3</span><span class="pl-p">;</span><span class="pl-n">i</span><span class="pl-o">&lt;=</span><span class="pl-n">A</span><span class="pl-o">*</span><span class="pl-mi">4</span><span class="pl-p">;</span><span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span>
           <span class="pl-k">for</span><span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">j</span><span class="pl-o">=</span><span class="pl-n">B</span><span class="pl-o">*</span><span class="pl-mi">4</span><span class="pl-o">-</span><span class="pl-mi">3</span><span class="pl-p">;</span><span class="pl-n">j</span><span class="pl-o">&lt;=</span><span class="pl-n">B</span><span class="pl-o">*</span><span class="pl-mi">4</span><span class="pl-p">;</span><span class="pl-n">j</span><span class="pl-o">++</span><span class="pl-p">){</span>
              <span class="pl-k">if</span><span class="pl-p">(</span><span class="pl-n">fll</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">][</span><span class="pl-n">j</span><span class="pl-p">]</span><span class="pl-o">&lt;</span><span class="pl-n">ans</span><span class="pl-p">)</span> <span class="pl-n">ans</span><span class="pl-o">=</span><span class="pl-n">fll</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">][</span><span class="pl-n">j</span><span class="pl-p">];</span>
           <span class="pl-p">}</span>
        <span class="pl-n">printf</span><span class="pl-p">(</span><span class="pl-s">&quot;%.1lf&quot;</span><span class="pl-p">,</span><span class="pl-n">ans</span><span class="pl-p">);</span>
    <span class="pl-p">}</span>
<span class="pl-p">}</span>
</cpde></pre></div>